#include <stdio.h>
void incr(int a)
{
	printf("input= %d\n", a);
	a ++;
	printf("before function ends = %d\n", a);
	
}

int main(int argc, char * argv[])
{
	int x = 8;
	printf("before calling incr, x = %d\n", x);
	incr(x);	
	printf("after calling incr, x = %d\n", x);
	return 0;
}
